Lovato KBF4S11 is an IP65 thermoplastic limit switch with an adjustable rubber roller lever, 1NO+1NC snap-action contacts and a bottom M20 cable entry.
£51.07
The Lovato KBF4S11 is an industrial K series limit switch with an adjustable roller lever, designed for position detection and motion monitoring in machinery and automated equipment. Its dimensions conform to EN 50047, supporting straightforward integration into standard industrial installations.
This limit switch features a 1NO+1NC snap-action contact arrangement, providing one normally open and one normally closed contact for machine-control, monitoring and sequencing circuits. The adjustable lever incorporates a rubber roller with offset alignment, allowing the actuator position to be adapted to the movement and geometry of the machine.
The KBF4S11 uses a double-insulated thermoplastic housing with IP65 body protection and a bottom M20 cable entry. Its rapid snap-action mechanism, self-releasing screw terminals and adjustable operating head make it suitable for reliable mechanical position detection in demanding industrial applications.
Limit switches convert the physical movement of a machine component into an electrical contact signal. The adjustable lever on the Lovato KBF4S11 allows the roller position to be configured for contact with cams, conveyors and other moving parts, while the rubber roller provides a resilient actuation surface.
The snap-action mechanism changes the normally open and normally closed contacts rapidly when the operating point is reached. This switching characteristic supports repeatable position detection where a decisive contact change is required despite gradual actuator movement.
| HS Code | 85365080 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | K |
| Model | KBF4S11 |
| Product type | Industrial limit switch |
| Actuator | Adjustable roller lever |
| Roller material | Rubber |
| Roller configuration | Offset alignment |
| Contact configuration | 1NO+1NC |
| Contact action | Snap action |
| Thermal current | 10 A |
| IEC/EN 60947-5-1 designation | A600 / Q600 |
| Rated insulation voltage | 690 V |
| Rated impulse withstand voltage | 6 kV |
| Insulation class | Class II |
| Average resistance per pole | Less than 10 mΩ |
| Switching speed | 0.5–1.5 m/s |
| Operating torque | 3 Ncm |
| Cable connection | Self-releasing screw terminals |
| Conductor capacity | 1.5–2.5 mm² |
| Cable entry | M20, bottom entry |
| Housing material | Polymer thermoplastic |
| Housing protection rating | IP65 |
| Terminal protection rating | IP20 |
| Operating temperature | -25 °C to +70 °C |
| Storage temperature | -40 °C to +70 °C |
| Maximum operating frequency | 3,600 cycles/hour |
| Pollution degree | 3 |
| Weight | 145 g |
| Dimensional standard | EN 50047 |
The KBF4S11 detects the position or movement of components in industrial machinery and changes the state of its normally open and normally closed contacts.
It has an adjustable roller lever with a rubber roller and offset alignment for adaptable mechanical actuation.
The switch has a 1NO+1NC snap-action contact arrangement, comprising one normally open and one normally closed contact.
The KBF4S11 has one bottom M20 cable entry and self-releasing screw terminals for conductor connection.
The thermoplastic body housing provides IP65 protection, while the terminals are rated IP20.
Lovato Electric K series limit switches provide adaptable and reliable position detection through standardised dimensions, durable industrial housings and a wide selection of actuator and contact configurations.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...